1111111022120 has 192 divisors, whose sum is σ = 2919620894400. Its totient is φ = 379194393600.

The previous prime is 1111111022107. The next prime is 1111111022141. The reversal of 1111111022120 is 212201111111.

It is a super-2 number, since 2×1111111022120² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111111022095 and 1111111022104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9783260 + ... + 9896180.

It is an arithmetic number, because the mean of its divisors is an integer number (15206358825).

Almost surely, 2^{1111111022120} is an apocalyptic number.

1111111022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111111022120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1459810447200).

1111111022120 is an abundant number, since it is smaller than the sum of its proper divisors (1808509872280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111111022120 is a wasteful number, since it uses less digits than its factorization.

1111111022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113080 (or 113065 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1111111022120 its reverse (212201111111), we get a palindrome (1323312133231).

The spelling of 1111111022120 in words is "one trillion, one hundred eleven billion, one hundred eleven million, twenty-two thousand, one hundred twenty".